Review on Seachem Tidal Filter Polishing Pack by Ray Mcknight

These pads work great. I have two of these in my 75 along with two blue sponges and they keep the water clear. You'll need to service your filter more often, but this filter's design makes it easy. I have this in a 75 gallon tank along with an 18 year old Aqua Clear 110. I keep Aqua Clear at its lowest flow and Tidal at around 50%-60% flow. This allows the water to circulate throughout the aquarium without tiring the fish.